Mold for building-blocks.



G. M. MARSHALL.

MOLD FOR BUILDING BLOCKS.

APPLICATION FILED DEC. 6, 191's.

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G. M. MARSHALL.

MOLD FOR BUILDING BLOCKS.

APPLICATION FILED DEC. 6. I916- G. M. MARSHALL. MOLD FOR BUILDINGBLOCKS.

APPLICATION FILED DEC.6,1916.

Patented Mar. 27, 1917.

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eEoneE MILLER. mnnsnAEL, E LAKE FRANCIS, MANITOBA, CANADA.

MOLD BUILDING-BLOCKS. L

Canada, have invented a new and Improved Moldfor Building-Blocks,ofwhich the following is a specification.

I My .present application is a divisional part Y of my copendingapplication filed on June 13, 1916, Serial No! 106,940, and my saidpresent invention has 'for its object to provide a simple, inexpensiveand easily manipulated combination of elements adapted for beingcoiiperatively assembled to provide a. series of like shaped plasticreceiving molds or forms, that are so arranged and combined that a largenumber of the formed or molded blocks in unif expeditiously made at thesame time.

' With other objects in view that will hereinafter appear, my presentinvention em,- bodies ina mold for buildingblocks, certain details ofconstruction and combination of parts, hereinafter explained,specifically pointed out in the appended claims and illustrated in theaccompanying drawings, in whichz Figure 1 is a perspective view.

Fig. 2 is a similar view, on an enlarged scale, of a-portion of mypresent form of mold, some of the mold pockets being shown empty andparts being shown in section.

Fig. 3 is a transverse section thereof on the line 33 on Fig. 2.

Fig. 4 is a similar view on the line 44 on Fig. 2.

Fig. 5 is a end plates.

Fig. 6 is a cross section thereof on the line 66 on Fig. 5.

Fig. 7 is a perspective view of one of the side plates;-

Fig. 8 is a cross section on the line 88 on Fig. 7.

Fig. 9 is a horizontal section of a portion of one of the end plates andthe cooperating perspective view of one of the ends of two side plates.

Fig. 10 is a perspective view of one of the blocks made by myconstruction of mold. Fig. 11 is a similar viewlooking at the oppositeside from that shown 1n Fig. 10, and Y Fig. 12 illustrates aportion of awall structure embodying the form of block made by my presentconstruction of mold.

at Lake Francis,-in the.

orm shape may becarrying frame before sole plates,

Specification of Letters Patent. Patented Man". 27, 1191?,

Original application filed-Tune 13, 1916, Serial No. 106,940. Dividedand 1916.- Serial No. 135,435.

this application filed December 6,

. and 9,'anchor plates 4-56 and 7 that extend above the verticalportions of the members 1 and 2. V V

The anchor plates have slots for receiving the ends of tie rods or bolts8 and 9, one at each end of the mold, and each of which, at one end, hasa head 10 and the other end threaded for receiving a clamp nut 11, as isclearly illustrated in Figs. 1 and 2,by reference to which it will beseen that when the rods 8 and 9 are operatively adjusted, by screwing upthe .nuts 11-11, the angled side bars 1 and 2 of the carrying or mainframe, are drawn up for holding the mold pocket forming elementstogether, as is clearly shown in Fig. 1.

Angled bars 13, 14, 15 and 16 are fixedly attached, by rivets 12, toeach end of the angled bars 1 and 2 and the said members 13,14, 15 and16, with the angled bars 1 and 2, the slotted angled members 4, 5, 6,and 7 and the tie rods 9 and 8, form the complete referred to.

l7-17 designate sole or supporting plates that extend transversely withrespect to the side bars 1 and 2 and have their ends restinguponthehorizontallyflanged portions of the said angled members 1 and 2.

In the present showing, the carrying frame is designed to accommodate anumber of molds, arranged in rows of six in-length, and in sucharrangement, I employ seven the end ones 1717 of which are comparativelynarrow while the intermediate ones are relatively wide.

18 designates bottom plates, hereinafter termed pallets, each of whichis of a width and length of the building block to be formed and, thesaid pallets 18, are mount- .ed upon the sole plates in parallel,longitudinal and transverse rows with the sides and ends spaced a shortdistance apart, as

-formed by end plates 19.and side *or partiin Figs. 3 and 4, byreference to which it will also be noticed that the side plates 20 arethe nature of stout spacing or partition members having the length ofthe block to I be formed while the end plates extend entirelyacross fromone side bar to the other side bar of the carrying frame, extending, as

it were, the full length of the transverse sets. of blocks, and with theends of the side plates or sections 20 interlockably abutting the endplates, as hereinafter more fully explained.

The end plate 19 in my present construction at a short distan has aplurality of similar shaped alining tongues 31, V-shaped in crosssection, with the ends of adjacent onesof the said tongues 31 spacedapart a distance equal'to the thickness of the partition or side plates20,- and the tongues 31' at one end are beveled or tapered as indicatedat 22, while the other end terminates in a straight or upright surfaceindicated by 34, asbest shown in Figs. 5 and 9, by reference to which itwill be seen that the straight edge 34 of one tongue isadjacent thebeveled end '22 ofanother tongue.

The V-shaped grooves 32 in the end plate have both their endsterminating in abrupt dicated at 38.

Centrally of the length of the groove-37 is 1 an elongated fillerportion 39 and, on that side having the said filler 39, the plate 2.0

or right-angled Walls 32", as is clearlyshownin'Fig. 9.

Each side or partition plate 20, that cooperates with the end piates,hereinbefore described has a ,continu us longitudinally disposedll-sha-ped tongue atone side, one end of which is tapered as at 36, and,on the other side, it has a longitudinally disposed V-shapedgroove 37,one end of which terminates short of one end of'the plate, as in;

. has a laterally projected V-shaped slot formmg web 40 whose upper edgeis flushed with the "upper edge of the plate, as shown. r" I From theforegoing taken-in connectionwith the drawings, the completeconstruction and the manner in which the several parts tha. constitutemy present construction of mold are assembled for use, .will be readilyunderstood by those skilled in the art to which my invention relates. Inthe use of my present invention-fithe mold is set up bybeginning at anycorner of the carrying frame and first placing an end from its upperedge,

blocks,

: is filled up to theleve plate crosswise betweenthe side bars of. the

sole plates and with 'the other two of its edges bearing against thepreviously set end and side plates.

Another side plate is then placed upon the sole plates with its endsabutting the opposite pair of end plates, the said ends of the sideplate being rigidly held in place by fitting between the tongues'31onthe said end plates.

Another pallet. 18 is then placed in position with its edges bearingagainst the adj acent set side plate and the opposite end plates, afterwhich another side plate isset up'and so on. 7

By having machined pallets within the mold pockets engaging .the sideand end "plates, as stated, a. rigid mold structure is provided and whenthe parts are assembled in the manner stated one that will produceabsolutely rectangular or square blocks without the slightest trouble tothe operator.

In Figs. 10and 11, I have shown a comof' mold forms and thesaid block,it will be plete block made by my present construction.

noticed, has a, continuous V-shaped groove 4 on one side and one end anda projecting V- shaped-tongue on the other end and the other side has aV-shaped tongue extending'along its face which has a recessed channeland a transverse slot that passes from the channel diagonally across theadjacent corner of the block.@

To explain'th e tongues and grooves of the block formed by my presentconstruc- :tion of mold are made by the tongues and grooves of the sideand end plates, the cross channel 7 is made by the filler portion 39' onthe side plate and the slot 9 is produced by the V-shaped web 40 thatprojects from the portion 39 of the said side plate.

In the operation of making. a nest of after the mold forms have beenproperly'positioned, a self-binding surfacing materia is run into-themold ockets and then a self-hardening body or ackin material .or upper eges of the mold members and around the tongue members and into thegrooves,- after which the filled mold isallowed to set and when set, theentirev mold may be readily separated by releas ng thetle bolts at theopposite-ends thereof.

By reason of the peculiar formation of the blocks made by my presentconstruction of mold, they can be readily assembled in constructmg awall or partition and secured to the angled uprights or guides in themanner clearly shown in Fi 12, in which the said blocks are shown tier?to the said uprights by nail or rod clips 80 that have their oppositeends bent at right angles and in opposite directions, whereby whenapplied for use, one of the endslaps over one edge of the uprights andthe other end extends laterally of the slot 9 and lies flatwise on thecross channel f, it being understood that when the next block is placedin position, the clips 80 are firmly embedded in the wall and tied tothe uprights.

What I claim is: 1. A mold of the class described having a series oflongitudinally extending side mold plates, transversely extending endmold plates, each of the said side plates being provided with V-shapedtongues and V-shaped grooves, a filler located in the said groove and aslot forming web carried by the said filler. 1

2. A mold of the class described having a pair of transversely extendingend mold plates, a series oflongitudinally extending side mold plateslocated between the end plates, each of the said side mold plates havinga V-shaped tongue and a V-shaped groove, a filler piece in the grooveand a slot forming web projected laterally from the filler piece of thesaid side plate.

3. Ina mold of the class described, the

combination with a plurality of transverse or end mold plates; of alurality of side mold plates, said side mold plates each including afiller piece and a laterally projected angular extension adapted forform-' ing a slot across one edge of a block when formed in the mold.

4. In a mold of the character stated, a

plurality of end plates, a plurality of side plates located between theend plates, the

said side and end plates being removably sustained on the supportingframe, the end plates having a series of separated alining -shapedtongues at one side, each tongue having one end terminating in astraight edge and the other edge terminating in a beveled edge, a seriesof corresponding V- shaped grooves on the other side of the said endplates whose ends terminate in straight GEORGE MILLER MARSHALL.

